Yunsun LED is a manufaturer of indoor LED lighting. Candle bulb is one of these popular bulb. 4W/5W led candle bulb is available, that equival 35w-50 incandescent. COB light source, the led we used is Epistar. from Taiwan 0-100% dimmable. The dimming IC driver is NXP from Philips, matched with leading and trailing edge traic dimmers. Yunsun LED has international patented lens : three finger lens. Its function is make the beam angle wider. "Quality is culture" that is Yunsun LED brand!
First, the voltage and current 1. Do not recommend the use of LED in parallel, because even the same model, the same batch of LED operating voltage has a certain difference, unless the current circuit. 2. In the installation of ultra-bright white LED, there must be anti-static facilities, because the electrostatic damage to the ultra-bright white LED even if the naked eye can not see, will reduce the service life. 3. If the LED operating voltage changes 0.1V, then the working current may change about 20mA. Under normal circumstances the use of series current limiting resistor, you can also use a simple constant voltage circuit, the purpose is to do automatic pressure limiting current limiting, to prevent damage to the LED. 4. The peak current of ordinary LED is 50 ~ 100mA, the reverse voltage is about 6V. When applying LED, pay attention to the design of the circuit when the peak voltage and current do not exceed this limit. (Ex...
Yunsun LED recently launched some new LED light. One is this RGB wireless book lamp: Wireless & Rechargeable: Powered by Li Battery inside which can support the lamp for 5-6 hours. Recharge it by connecting the power charge wire to your computer or your mobile power adaptor USB port. Magic Light Color Changeable: Switching the light color by open and close the book light, Warm White, Blue, Red and Green 4 Color Options, Warm White Color for regular lighting, Blue Light gives great help to people to get into sleep. Magnet Holding Design: Has Magnet in both top and bottom covers, which enables the book can be shaped as round and half circle,can be placed on your table, desk as reading light, or stick onto your refrigerator or magnetic wall as night light. Portable and Foldable: Foldable as an old book,which enable it to be portable as a note book, can be easily put into your hand bag and briefcase, very light, no more th...
1, ceiling openings Household downlight cut hole is 2-inch, 2.5-inch, 3-inch ,the larger the size of the hole, the overall height of the overall height of the downlight, the greater the requirements of the depth of the ceiling. In general, the full length of the downlight after the extension of 10 cm to 13 cm between the ceiling, so the depth of the installation ceiling ceiling ceiling generally above 13 cm, if the ceiling is too shallow, you can consider the installation of ceiling light or horizontal Downlight. While the ceiling light installation ceiling as long as 6 to 8 cm. 2, light source 3, light efficiency requirements 4, the price From the price point of view the same grade, spotlights to be more expensive. Downlight has horizontal and vertical insert two, horizontal insert price than the vertical insert a little expensive (but also the same material). 5, the risk Generally speaking, the lamp is more safe than the spotlights, the general spotl...
LED lighting products have broad market prospects, especially in the lighting field. Currently used in lighting the field of LED products are more, such as LED guardrail lights, LED Caoping Deng, LED spotlights, LED underwater lights, LED buried lights and so on. Although we are more understanding of LED light source with energy saving, long life, no radiation (environmental light source) and other advantages, but with LED products related to several key issues also need attention. : First, the use of DC constant current power supply LED products to use a dedicated switching power supply (constant current source) to the LED product power supply this will not affect the product life, but the product cost is relatively high. Second, to do anti-static measures Different quality standards of LED products, anti-static aspects of the capacity are not the same, so LED products in the processing of the production process to adopt...
LED Downlight is a kind of embedded in the ceiling under the light of the lighting type of lighting. It is the biggest feature is to maintain the overall unity of the building decoration and perfect, not because of the setting of the lamp and destroy the perfect unity of the ceiling art. Recessed Downlight the structural advantages of the light source is hidden inside the building decoration, the light is not exposed, no glare, people's visual effects are soft and uniform. Generally in the hotel, family, cafes use more. From the direction of the light source, the downlight is a directional lighting, only its opposite surface can be received, the beam angle is focused, the light is more concentrated, bright and dark contrast. More prominent by the object, high luminosity, but also bring out a quiet atmosphere of the environment. Generally suitable for shopping malls supermarkets, office buildings, business hall. From the way to the lighting points, which...
OLED (organic light-emitting display) of the screen is a current through the light when the organic material can be composed. As a result of the removal of the backlight, OLED screen performance is more superior than other competing products. OLED Advantages: 1, OLED televisions are able to provide higher density of pixels and sharper images, which means that OLED screens can display three-dimensional images without sacrificing images at the expense of most other televisions. In the OLED TV to enjoy the natural scenery when the video is like a window, rather than watch a glowing box. 2, OLED display can artificially create all the natural colors. OLED screen contrast is almost unlimited, so watch the Blu-ray disc "Dark Knight" when the screen does not appear color aliasing or black spots. OLED also overcome the problem of dynamic blur, usually in the LCD device will see when the characters quickly flashed ...
LED floodlight (LED Downlight) also known as spotlights, projection lamps, spotlights, etc., mainly used for building decoration lighting purposes, as well as commercial space lighting, decorative elements heavier, the appearance of a circle also has Side, because generally have to consider the reasons for heat, so its shape and the traditional cast light or there are some differences. Second, LED cast light characteristics: LED cast light through the built-in micro-chip control, in small engineering applications, no controller can be used to achieve the gradient, jump, color flicker, random flicker, gradient alternation and other dynamic effects can also be controlled by DMX, To achieve chase, scan and other effects. What do you need to pay attention to? 1, high purity aluminum reflector, the most accurate beam, the best reflection. 2, symmetrical narrow angle, wide angle and asymmetric distribution system. 3, behind the open replacemen...
LED lights classification: mainly divided into external lighting and internal lighting. Common lights are: headlamps, turn signals, rear lights, fog lights, reversing lights and so on. The following are the same as the " In general, as long as it is not bright, it means that the light bulb has been burned, must be replaced. But if not completely broken, but the brightness is reduced, the light red and dim, it must not be taken lightly, because it may be a precursor to failure, and reduce the lighting capacity is also a major risk of safe driving There are several reasons for the reduction of brightness, the most common is the lamp astigmatism glass or mirror on the plot of dust, then need to do is only with a flannel or lens paper to remove the dirt can be clean. Another reason is the battery charging capacity decline, lack of power and lead to insufficient brightness, so you need to replace the new battery. There may be a line of aging or wire is t...
As with traditional light sources, the optical units of the LED light source are uniform. In order to make readers understand and easy to use, the following will be a brief introduction to the knowledge: First, the luminous flux Luminous flux refers to the amount of light emitted by the light source in the unit time, that is, the radiation energy can be felt by the human eye that part of the radiation energy. It is the product of the radiant energy of a band in a unit time and the relative visual acuity of the band. As the human eye on the different wavelengths of light relative visual rate is different, so different wavelengths of light radiation power is equal, the luminous flux is not equal. The luminous flux symbol is Φ, in lumens (Lm). According to the spectral radiation flux Φ (λ), we can get the luminous flux formula: Φ = Km ■ Φ (λ) gV (λ) dλ In the formula, V (λ) - relative to the spectral efficiency of light; Km-radiati...